Rich, B., & Schmidt, P. A. (1989). Schaum's outline of theory and problems of geometry: Includes plane, analytic, transformational, and solid geometries (2nd ed.). McGraw-Hill.
Παραπομπή σε μορφή Chicago (17η εκδ.)Rich, Barnett, και Philip A. Schmidt. Schaum's Outline of Theory and Problems of Geometry: Includes Plane, Analytic, Transformational, and Solid Geometries. 2nd ed. New York: McGraw-Hill, 1989.
Παραπομπή σε μορφή MLA (9th εκδ.)Rich, Barnett, και Philip A. Schmidt. Schaum's Outline of Theory and Problems of Geometry: Includes Plane, Analytic, Transformational, and Solid Geometries. 2nd ed. McGraw-Hill, 1989.
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